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SUMMARY OF SIGNIFICANT ACCOUNT POLICIES (Details) - Schedule of ROU lease assets and lease liabilities - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2020
Assets: |  |
Operating lease assets | $ 331,419 | $ 125,258
Total lease assets | 331,419 |
Operating lease liabilities, current | 489,406 |
Operating lease liabilities, net of current | 52,449 |
Total lease liabilities | $ 541,855 |

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- References No definition available. + Details
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Namespace Prefix: | onds_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | onds_OperatingLeasLiability
Namespace Prefix: | onds_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | onds_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of lease asset for the period. + References No definition available. + Details
Name: | onds_TotalLeaseAssets
Namespace Prefix: | onds_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | debit
Period Type: | instant